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DC Field | Value | Language |
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dc.contributor.author | Mahadevana, Kittappa M | - |
dc.contributor.author | Harishkumar, Hosanagara N | - |
dc.contributor.author | Masagalli, Jagadeesh N | - |
dc.contributor.author | Srinivasa, H.T. | - |
dc.date.accessioned | 2013-05-13T06:39:46Z | - |
dc.date.available | 2013-05-13T06:39:46Z | - |
dc.date.issued | 2013-01-22 | - |
dc.identifier.citation | Molecular Crystals and Liquid Crystals, 2013, Vol.570, p20 | en |
dc.identifier.issn | 1542-1406 | - |
dc.identifier.issn | 1563-5287 (Online) | - |
dc.identifier.uri | http://hdl.handle.net/2289/5575 | - |
dc.description | Restricted Access. | en |
dc.description.abstract | New liquid crystalline 4-alkoxyphenyl-coumarin-3-carboxylates 6a–e, 7a–g, 8a–e, and 9a–e were prepared by reacting various coumarin-3-carboxylic acids 5a–d with 4-(alkoxy) phenols 4a–g in the presence of 1(3-dimethylaminopropyl-3-ethylcarbodiimide/dimethyl amino pyridine (EDCI/DMAP) as a coupling agent. The structures of the new coumarin derivatives were confirmed by spectral analysis and the liquid crystalline property was established by polarizing optical microscope and by differential scanning calorimetric techniques. The diethyl amine and morpholine were taken as electron-donating and –CF3 as electron-withdrawing groups at the seventh position of the coumarin-3-carboxylic acids to check the mesomorphic property in all new 4-alkoxyphenyl-coumarin-3-carboxylates. Among them, only 4-alkoxyphenyl-7-triflouromethyl-coumarin-3-carboxylates 7a–g exhibited liquid crystalline SmA phase | en |
dc.language.iso | en | en |
dc.publisher | Taylor & Francis | en |
dc.relation.uri | http://dx.doi.org/10.1080/15421406.2012.704824 | en |
dc.rights | 2013 Taylor & Francis | en |
dc.subject | 4-Alkoxyphenyl-coumarin-3-carboxylate | en |
dc.subject | focal conic texture | en |
dc.subject | mesophase | en |
dc.title | Synthesis and Liquid crystal property of new fluoro coumarin carboxylates | en |
dc.type | Article | en |
Appears in Collections: | Research Papers (SCM) |
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File | Description | Size | Format | |
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2013_MCLC_V570_p20.pdf Restricted Access | Restricted Access | 840.91 kB | Adobe PDF | View/Open Request a copy |
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